To find out how many Salmon Filet's were served, knowing that 80% of the specials were Salmon Filet, and there were a total of 70 specials in total, we need to find what 80 percent of 70 is. That's because that will lead us to our answer.
Since a percent is something over 100 (per 100), 80% is 80/100 which simplifies to 4/5. That means that we have to multiply 70 by 4/5. 70 * 4/5 is equal to 280/5. Since 280/5 equal 56, there were 56 Salmon Filet's served, or C.
2 because she spent a total of $18 and the books each cost 6 times two will equal 18
Answer:
The maximun height that the rocket will reach is 3150 ft.
Step-by-step explanation:
This problem requieres that we maximize the function. For this we need the function to be of the form:
We already have that covered, as the height of the rocket is represented by:
We start calculating the derivative of h(t), wich is:
We need to remember that the derivative of a function represents the slope of said function at a given point. The maximum value of the function will have a slope equal to zero.
So we find the value in wich the derivative equals zero:
This means that 15 seconds is the time at wich the rocket will reach it's maximum height.
We replace this value in the original equation to solve the problem:
With this we can conclude that the maximum height the rocket will reach is 3150 ft.
Answer:
General Formulas and Concepts:
- Order of Operations: BPEMDAS
- Slope Formula:
Step-by-step explanation:
<u>Step 1: Define</u>
Point (-6, 5)
Point (3, -7)
<u>Step 2: Find slope </u><em><u>m</u></em>
- Substitute:
- Simplify:
- Subtract/Add:
- Simplify: